Re: [Xen-users] Am I running under Xen?

[Andy Smith <andy@xxxxxxxxxxxxxx>]

Hi,

On Sun, Mar 02, 2008 at 11:05:01PM -0500, jim burns wrote:
> On Sunday 02 March 2008 09:56:54 pm Tom Horsley wrote:
> > Is there a standard idiom most folks use to ask the
> > question: Am I a linux that was just booted under Xen?
> 
> Probably the existence of /proc/xen, altho that's true for dom0 also.

You can test whether you are dom0 or domU by looking at
/proc/xen/capabilities.

A modified dom0 can of course lie to you about this though, so it
isn't a very satisfactory answer to the hypothetical philosophical
question of "are we in a virtual machine?"  Unfortunately there is
no Morpheus with the blue and red pills.

Cheers,
Andy

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